|Message: Fission in the 1-40 MeV range||Not Logged In (login)|
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Hello Geant4 community,
in our group we are looking for a way of simulating an experimental setup with neutrons up to 40 MeV. We are especially interested in fission. The HP models do a great job up to 20 MeV but the cascade models (Bertini, Binary cascade) in the 20-40 MeV range are not very good. Especially there's a clear discontinuity at 20 MeV.
The HP models are quite complex and I have not been able to find documentation for the data format. It looks to me that it will be difficult just adding more cross section data to G4NDL for the needed elements thus extending the range that way.
So what can we do? Is it possible to shut off the fission channel in the cascade models and implement our own fission model in the 20-40 MeV range? Have I missed some other model which does a better job on fission above 20 MeV? Or is there a better model taking care of inelastic scattering above 20 MeV but not doing fission (thus disturbing any by us implemented fission model > 20 MeV)?
Any ideas and suggestions are welcome, Kaj
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